📄 lcd_demo.lst
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ARM COMPILER V2.42, Lcd_Demo 05/01/06 14:35:51 PAGE 1
ARM COMPILER V2.42, COMPILATION OF MODULE Lcd_Demo
OBJECT MODULE PLACED IN .\Obj\Lcd_Demo.obj
COMPILER INVOKED BY: C:\Keil\ARM\BIN\CA.exe Lcd_Demo.c THUMB BROWSE DEBUG PRINT(.\LST\LCD_DEMO.LST) TABS(4) OBJECT(.\Obj
-\Lcd_Demo.obj)
stmt level source
1 /*============================================================
2 LPC214X 液晶功能演示
3 作者: Mingtree ycxms88@163.com http://www.mcu123.com
4 ==============================================================
5
6 /*
7 引脚分布
8 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7
9 TX0 RX0 CS1 K4 K3
10
11 P0.8 P0.9 P0.10 P0.11 P0.12 P0.13 P0.14 P0.15
12 TX1 RX1 RW SCL SDA K1 VRST K2
13
14 P0.16 P0.17 P0.18 P0.19 P0.20 P0.21 P0.22 P0.23
15 BEEP SCK1 MISO MOSI SSEL RS_COM RW VB
16 P0.24 P0.25 P0.26 P0.27 P0.28 P0.29 P0.30 P0.31
17 AOUT D+ D- A_IN1 A_IN2 CS2 ULED
18
19 LED引脚
20 L1---------L8
21 P1.16----P1.23
22 */
23
24 #include <LPC214X.H> /* LPC214x definitions */
25
26 #include <Code.H>
27 #define uchar unsigned char
28 #define uint unsigned int
29
30
31 #define E1 4 //块1 左边
32 #define E2 30 //块2 右边
33
34 #define RW 22 //读写控制端 0为写 1为读
35 #define A0 21 //A0为1时是数据，0时为指令数据
36
37
38 #define DATA PORTB //数据
39
40
41
42
43 void Io_Set(uchar pin) //单个IO口置位函数
44 {
45 1 unsigned int io_data=1;
46 1 io_data=io_data<<pin;
47 1 IOSET0=io_data; //IOSET0为IO线上置位寄存器，1有效，0无
48 1 }
49
50
51 void Io_Clr(uchar pin) //单个IO口清零函数
52 {
53 1 unsigned int io_data=1;
54 1 io_data=io_data<<pin;
55 1 IOCLR0=io_data; //IOCLR0为IO线上清零寄存器，1有效，0无
56 1 }
57
58
ARM COMPILER V2.42, Lcd_Demo 05/01/06 14:35:51 PAGE 2
59 void Io_Set1(uchar pin) //单个IO口置位函数
60 {
61 1 unsigned int io_data=1;
62 1 io_data=io_data<<pin;
63 1 IOSET1=io_data; //IOSET0为IO线上置位寄存器，1有效，0无
64 1 }
65
66
67 void Io_Clr1(uchar pin) //单个IO口清零函数
68 {
69 1 unsigned int io_data=1;
70 1 io_data=io_data<<pin;
71 1 IOCLR1=io_data; //IOCLR0为IO线上清零寄存器，1有效，0无
72 1 }
73 void OUT_DATA(unsigned char data)
74 {
75 1 unsigned char i;
76 1 for(i=0;i<8;i++)
77 1 {
78 2
79 2 if(data&1) {Io_Set1(i+16);} //把相应的IO口置位或者清零
80 2 else {Io_Clr1(i+16);}
81 2 data=data>>1;
82 2 }
83 1 }
84
85
86
87 //延时
88 void delay(unsigned int i)
89 {
90 1 unsigned int k=1000;
91 1 while(i>0)
92 1 {
93 2 i--;
94 2 }
95 1 while(k>1)k--;
96 1 }
97
98
99 void delayms (unsigned int i) { /* Delay function */
100 1 unsigned int n;
101 1 while(i>1)
102 1 {
103 2 for(n=65535;n>1;n--);
104 2 i--;
105 2 }
106 1 }
107 //左页
108 //发送数据
109 void OUTMD(unsigned char i)
110 {
111 1 Io_Set(A0); //A0_1; //写数据
112 1 delay(1);
113 1 Io_Set(E1); //E1_1;
114 1 delay(1);
115 1 OUT_DATA(i);// DATA=i;
116 1 delay(1);
117 1 Io_Clr(E1); //E1_0;
118 1
119 1 }
120 //左页
121 //发送命令
122 void OUTMI(unsigned char i)
123 {
124 1 Io_Clr(A0); //A0_0; //写指令
ARM COMPILER V2.42, Lcd_Demo 05/01/06 14:35:51 PAGE 3
125 1 delay(1);
126 1 Io_Set(E1); //E1_1;
127 1 delay(1);
128 1 OUT_DATA(i); //DATA=i;
129 1 delay(1);
130 1 Io_Clr(E1); //E1_0;
131 1
132 1 }
133 //右页
134 //发送数据
135 void OUTSD(unsigned char i)
136 {
137 1 Io_Set(A0); //A0_1; //写数据
138 1 delay(1);
139 1 Io_Set(E2); //E2_1;
140 1 delay(1);
141 1 OUT_DATA(i); //DATA=i;
142 1 delay(1);
143 1 Io_Clr(E2); //E2_0;
144 1
145 1 }
146 //右页
147 //发送命令
148 void OUTSI(unsigned char i)
149 {
150 1 Io_Clr(A0); //A0_0; //写指令
151 1 delay(1);
152 1 Io_Set(E2); //E2_1;
153 1 delay(1);
154 1 OUT_DATA(i); //DATA=i;
155 1 delay(1);
156 1 Io_Clr(E2); //E2_0;
157 1
158 1 }
159
160
161
162
163 //初始化
164 void lcdini(void)
165 {
166 1 Io_Clr(RW); //RW_0;
167 1 OUTMI(0XE2);
168 1 delay(1);
169 1 OUTSI(0XE2);//复位
170 1 delay(1);
171 1 OUTMI(0XAE);
172 1 delay(1);
173 1 OUTSI(0XAE);//POWER SAVE
174 1 delay(1);
175 1 OUTMI(0XA4);
176 1 delay(1);
177 1 OUTSI(0XA4);//动态驱动
178 1 delay(1);
179 1 OUTMI(0XA9);
180 1 delay(1);
181 1 OUTSI(0XA9);//1/32占空比
182 1 delay(1);
183 1 OUTMI(0XA0);
184 1 delay(1);
185 1 OUTSI(0XA0);//时钟线输出
186 1 delay(1);
187 1 OUTMI(0XEE);
188 1 delay(1);
189 1 OUTSI(0XEE);//写模式
190 1 delay(1);
ARM COMPILER V2.42, Lcd_Demo 05/01/06 14:35:51 PAGE 4
191 1 OUTMI(0X00);
192 1 OUTMI(0XC0);
193 1 OUTSI(0X00);
194 1 OUTSI(0XC0);
195 1
196 1 OUTMI(0XAF);
197 1 OUTSI(0XAF);
198 1
199 1 }
200 /*
201 函数说明：同时设置主从显示页为0－3页。（内函数，私有，用户不直接调用）
202 ------------------------------------------------------------------------
203 */
204 void SetPage(uchar page0,uchar page1)
205 {
206 1 OUTMI(0xB8|page1);OUTSI(0xB8|page0);
207 1 }
208
209 /*
210 --------------------------------------------------------------------------------
211 函数说明：同时设置主从列地址为0－121。（内函数，私有，用户不直接调用）
212 --------------------------------------------------------------------------------
213 */
214 void SetAddress(uchar address0,uchar address1)
215 {
216 1 OUTMI(address1);OUTSI(address0);
217 1 }
218
219 /*
220 --------------------------------------------------------------------------------
221
222 调用方式：void PutChar0(uchar ch)
223 函数说明：在右页当前地址画一个字节8个点。（内函数，私有，用户不直接调用）
224 --------------------------------------------------------------------------------
225 -*/
226 void PutCharR(uchar ch)
227 {
228 1 OUTSD(ch);
229 1 }
230
231 /*
232 --------------------------------------------------------------------------------
233
234 调用方式：void PutChar1(uchar ch)
235 函数说明：在左页当前地址画一个字节8个点。（内函数，私有，用户不直接调用）
236 --------------------------------------------------------------------------------
237 -*/
238 void PutCharL(uchar ch)
239 {
240 1 OUTMD(ch);
241 1 }
242
243 /*
244 --------------------------------------------------------------------------------
245
246 调用方式：void DrawBmp(bit layer,uchar width,uchar *bmp)
247 函数说明：画一个图,layer表示上下层，width是图形的宽，高都是16，bmp是
248 图形指针
249 使用zimo3软件，纵向取模，字节倒序/240字节
250 --------------------------------------------------------------------------------
251 -*/
252 void DrawBmp(unsigned layer,uchar width,unsigned char const *bmp)
253 {
254 1 uchar x,address,i=0; //address表示显存的物理地址
255 1 uchar page=0; //page表示上下两页
256 1 uchar window=0; //window表示左右两页
ARM COMPILER V2.42, Lcd_Demo 05/01/06 14:35:51 PAGE 5
257 1 //putcharR //右边
258 1 //putcharL //左边
259 1
260 1 for (x=width;x>1;x--)
261 1 {
262 2 if (i>60) {window=1;address=i%61;}
263 2 else address=i;
264 2
265 2 if(layer==0) //显示一行八个字
266 2 {
267 3 SetPage(0,0);
268 3 SetAddress(address,address);
269 3 if(window==1)PutCharR(bmp[i]);
270 3 else PutCharL(bmp[i]);
271 3 SetPage(1,1);
272 3 SetAddress(address,address);
273 3 if(window==1)PutCharR(bmp[i+width]);
274 3 else PutCharL(bmp[i+width]);
275 3 }
276 2 else
277 2 { //显示第二行八个汉字
278 3 SetPage(2,2);
279 3 SetAddress(address,address);
280 3 if(window==1)PutCharR(bmp[i]);
281 3 else PutCharL(bmp[i]);
282 3 SetPage(3,3);
283 3 SetAddress(address,address);
284 3 if(window==1)PutCharR(bmp[i+width]);
285 3 else PutCharL(bmp[i+width]);
286 3 }
287 2 i++;
288 2
289 2 }
290 1 }
291
292
293 /*
294 --------------------------------------------------------------------------------
295
296 调用方式：void clrscr(void)
297 函数说明：清屏
298 --------------------------------------------------------------------------------
299 -*/
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